Elemental Geosystems by Robert W. Christopherson
Skeptical Science Skepticism of global warming skepticism
U.S. Geological Survey US Government funded Science organization, see About page for more information
USGS Volcanoes
USGS Topographic Maps Viewer
USGS Geologic Maps of U.S. States
Dr. James Calvert
Wave Motions in the Oceans Notes on this topic in geophysics
Geochemistry textbook Drafts of an unpublished book
Atlas of Igneous & Metamorphic Rocks, Minerals & TexturesOne Geology General geological maps for the earthAccuWeather Techniques of Satellite Imagery The green-screen weather backgrounds a reporter gestures at and other maps are explained.
Earth & Environmental Sciences 2120 – Petrology
Mineralogy database Most extensive online reference for minerals; includes photos, localities, and diagrams
Wolfram Alpha/ Earth Sciences A huge knowledge database for earth science which contains information about various topics
Bad Meteorology website about what actually causes meteorological events
EarthRef includes element concentrations of various reservoirs in different earth systems (in GERM section), and paleomagnetic data.
The Paleobiology Database collection-based occurrence and taxonomic data for marine and terrestrial animals and plants of any geological age
PhET Earth Science java apps hosted by University of Colorado, topics include glaciers and the greenhouse effect
RSOE EDIS Disaster and emergency alert map